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linhhungdao
2 năm trước
chu vi của một hình chữ nhật bằng 140m, hiệu giữa số đo chiều dài và chiều rộng là 10m . tìm số đo các cạnh của hình chữ nhật (giải toán bằng cách lập pt)
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Các câu hỏi liên quan

I/ Cho dạng đúng của động từ trong ngoặc 1. I (do) ………………. all the housework. The flat is really clean now. 2. He (write) ……………. a novel for two years, but he (finish) …………………. it yet. 3. My brother (leave) ……………… home ten years ago. I (never/ meet) ………… him again since then. 4. What ……… you (do) ………… last weekend? …………… you (play) ……………. golf? 5. I like your car. How long …………. you (have) …………. it? 6. Mai (buy) …………… a new dress last month but she (not wear) …………………. it yet. 7. Mr. Quang (teach) ……… Math in this school since he (graduate) ……… from the university in 1989. 8. ……….. you (hear) ………… of Agatha Christie? She (be) ……….. a writer who (die) ……… in 1976. She (write) ……… more than 70 detective novels. ……… you (read) …….. any of them. II/ Điền từ thích hợp vào chỗ trống The Tran Phu street residents and store owners are going to hold a meeting discuss effects ............... the new shopping mall. The meeting will be .................. Binh's hardware Store, 12 Hang Da street, ............8 pm ........ 10pm .......... May 20. please contact Pham Van Tai ............ the above address ............. more information. III/ Cho dạng đúng của từ trong ngoặc 1. The shoes were nice, but they were (comfort) …………….. . 2. Hoa and Nien used to be next door (neighborhood) ………………….. . 3. Surface mail is much (cheap) …………….than airmail. 4. I can’t see him now; it’s not (convenience) ……………………… 5. They are very busy with (celebrate) ………………….. the Teacher’s Day. 6. Nam thinks the food in this restaurant is (taste) ………………… IV/ Gạch chân các từ sai 1. I’d like sending these postcards to America. ……………………. 2. She is quite different with her mother. …………………………. 3. He isn’t enough strong to carry this suitcase. ………………………… 4. My family has lived here in 1975. ………………………… 5. We have knew each other since we were children. …………………….. 6. Shopping in the mall is more comfort. …………………… 7. They didn’t meet him since last week. ……………………. 8. I’ve been waiting for him since two hours.

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